PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16538Seat,valve

Aerco International, Inc. Dba Aerco International Inc · NSN 4820-01-230-8957 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-230-8957 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-230-8957. Primary manufacturer part number: 16538.
Features
  • Seat,valve — FSC 4820
  • Material: STEEL OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Aerco International, Inc. Dba Aerco International Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-230-8957, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aerco International, Inc. Dba Aerco International Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-230-8957
Primary Part Number16538
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAerco International, Inc. Dba Aerco International Inc
StatusACTIVE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-144-8922 INTERCHANGEABLE
Bearing,ball,annular
5920-00-296-284216538 INTERCHANGEABLE
Fuseholder,block
Heil Environmental Industries
5360-00-598-670916538 INTERCHANGEABLE
Spring,helical,compression
Napco International Llc Dba Napco International Inc
4210-00-972-6445418288 INTERCHANGEABLE
Extinguisher,fire
Tyco Fire Products Lp
5342-01-266-8623 INTERCHANGEABLE
Strap,special
6515-01-589-9174239.987 INTERCHANGEABLE
Bone Plate
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
3040-01-674-018916538 INTERCHANGEABLE
Gearshaft,spur
New Venture Gear Inc New Process Gear Div
Cross-Reference Index
Part NumberManufacturer
16538 PRIMARY Aerco International, Inc. Dba Aerco International Inc (USA)
Related Parts
3110-00-144-8922INTERCHANGEABLE
BEARING,BALL,ANNULAR
5920-00-296-2842INTERCHANGEABLE
FUSEHOLDER,BLOCK
16538
5360-00-598-6709INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
16538
4210-00-972-6445INTERCHANGEABLE
EXTINGUISHER,FIRE
418288
5342-01-266-8623INTERCHANGEABLE
STRAP,SPECIAL
6515-01-589-9174INTERCHANGEABLE
BONE PLATE
239.987
3040-01-674-0189INTERCHANGEABLE
GEARSHAFT,SPUR
16538

Frequently Asked Questions

What is NSN 4820-01-230-8957?

NSN 4820-01-230-8957 is a Seat,valve, manufactured by Aerco International, Inc. Dba Aerco International Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-230-8957?

NSN 4820-01-230-8957 has 1 cross-referenced part number: 16538 (Aerco International, Inc. Dba Aerco International Inc).

What NSN replaces 4820-01-230-8957?

There are 7 known substitutes for 4820-01-230-8957: 3110-00-144-8922, 5920-00-296-2842, 5360-00-598-6709 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16538?

Key specifications for 16538: Material: STEEL OVERALL; Special Features: POLYTETRAFLUOROETHYLENE INSERT. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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